One Minute Mentor : Phase Transformations in Numerical Simulation

December 3, 2024
Source: ASM International

One Minute Mentor : Phase Transformations in Numerical Simulation

Heat treatment of tool steels means several phase transformations. Every phase transformation must be described by start amount, end amount, and kinetics (change of phases depending on temperature and time). Start and end amount can be calculated with different thermodynamic software. For example, Thermocalc is well validated for tool steels. The most common method for determining the transformation kinetics of main phases (e.g. ferrite, austenite, martensite, bainite) is to use dilatometric investigations. TTT (time-temperature-transformation) diagrams obtained from dilatometer measurements can be easily implemented in HTS software. An example is shown in the figure. 

For more information, click on the link below (subscription required). Then scroll to Figure 14. R Schneider; R. Mesquita; W Schützenhöfer, Distortion in Tool Steels, ASM International, 2014  https://doi.org/10.31399/asm.hb.v04d.a0005980

One Minute Mentor: Distortion of Corrosion-Resistant Plastic Mold Steels

November 4, 2024
Source: ASM International

One Minute Mentor: Distortion of Corrosion-Resistant Plastic Mold Steels

Corrosion-resistant plastic mold steels are usually tempered at lower tempering temperatures than hot-work, high-alloyed cold-work, or high-speed steels. A comparison of different types of corrosion-resistant plastic mold steels with the widely used cold-work tool steel D2 with the same dimensions as in the previous example for cold-work tool steels for such heat treatment conditions can be seen in the figure and shows that all steels show a similar low dimension change in width. Regarding the thickness of the plates there is a significantly higher increase for the ledeburitic cold-work tool steel. Vacuum heat treatment with high-pressure gas quenching leads to a similar amount of distortion as salt bath heat treatments but again shows significant scatter.

For more information, click on the link below (subscription required). Then scroll to Figure 13. R Schneider; R. Mesquita; W Schützenhöfer, Distortion in Tool Steels, ASM International, 2014  https://doi.org/10.31399/asm.hb.v04d.a0005980

Constellium honored with supplier of the year award from stellantis for csr excellence


Source: ASM International

Constellium honored with supplier of the year award from stellantis for csr excellence

Constellium, Paris, announced that it has been awarded the Supplier of the Year Award by Stellantis, recognizing the company’s strong commitment to corporate social responsibility (CSR). This honor reflects Constellium’s dedication to high CSR standards in both its operations and supply chain, which has earned positive ratings from several international rating agencies. A long-standing supplier for Stellantis brands, Constellium provides aluminum body sheet products and extrusion-based structural solutions for various vehicle platforms across Europe and the U.S.

Constellium’s approach to sustainability has been acknowledged by independent organizations, including EcoVadis, the Carbon Disclosure Project (CDP), MSCI ESG Ratings, and ISS-Oekom. As a founding member of the Aluminium Stewardship Initiative (ASI), Constellium recently achieved ASI Performance Standard Certification for all global operations.

Ingrid Joerg, executive vice president and chief operating officer at Constellium, expressed pride in the award from Stellantis, noting that it underscores the company’s dedication to responsible purchasing and sustainable solutions. The award was presented at Stellantis’s annual event in Turin, Italy, where Maxime Picat, stellantis chief purchasing and supply chain officer, emphasized the critical role of suppliers in supporting Stellantis’s growth through their commitment to quality and collaboration. Constellium, dedicated to delivering sustainable aluminum products, publishes annual sustainability reports to highlight its progress and results in this area

Read further here.

Ipsen USA launches service HUB Model for improved customer support

October 14, 2024
Source: ASM International

Ipsen USA launches service HUB Model for improved customer support

Ipsen USA, Cherry Valley, Illinois, announced the launch of its new Service HUB model, aimed at enhancing customer support across the United States. The HUB system, developed over the past two years under the leadership of Ipsen Global CEO Geoffrey Somary and currently overseen by Chief Service Officer John Dykstra, is now fully operational across the Midwest and Southeastern regions.

The HUBs are designed to offer quicker response times, with dedicated teams that provide tailored service for customers in close geographic proximity. This model allows Ipsen to optimize service efficiency, reducing downtime for heat-treating operations and improving customer experience.

In addition to benefiting customers, the HUB model also enhances the work-life balance of Ipsen’s Field Service Engineers (FSEs) by reducing travel time. The initiative is led by Lu Chouraki, Manager of Business Development, who emphasized the goal of minimizing response times and improving support for customers facing operational outages.

This strategic shift reflects Ipsen’s commitment to service excellence, offering personalized, regional expertise that both empowers its team and delivers enhanced support to customers.

Read further here. 

Nitrex celebrates 40 Years of innovation in heat treatment solutions


Source: ASM International

Nitrex celebrates 40 Years of innovation in heat treatment solutions

Nitrex, Quebec, announced that it is celebrating its 40th anniversary this year, marking four decades of growth and innovation in the heat treatment industry. Founded in 1984, Nitrex has evolved from a pioneer in controlled nitriding to a global leader offering end-to-end heat treatment solutions. The company’s technological advancements have expanded its capabilities to encompass metallurgy, engineering, process optimization, and automation.

Since 2019, under the current leadership, Nitrex has broadened its portfolio to include advanced vacuum furnaces and introduced technology for improved brake rotor performance. The company has also launched digital platforms such as QMULUS, aimed at optimizing customer processes and boosting operational efficiency.

In addition to its own milestone, Nitrex is celebrating the 50th anniversary of its UPC-Marathon office in Germany, recognizing the long-standing contributions and achievements of its global team. These anniversaries reflect Nitrex’s ongoing commitment to innovation and excellence.

Read further here.

Wisconsin Oven ships small batch oven to Canadian manufacturer

September 16, 2024
Source: ASM International

Wisconsin Oven ships small batch oven to Canadian manufacturer

Wisconsin Oven, East Troy, WI, announced the international shipment of an electrically heated small batch oven to a Canadian manufacturer of automotive components. The oven, designed for curing parts, has a maximum temperature rating of 650°F and chamber dimensions of 4’ W x 4’ L x 4’ H. Prior to shipment, the oven’s temperature uniformity of ± 10°F was verified through a nine-point profile test conducted in an empty chamber under static conditions.

The unit features patented high-efficiency panel seams for improved insulation, a 4” thick insulated floor, and two carbon steel shelves for part loading, each rated for 5 pounds per square foot. It utilizes combination airflow for optimal heating rates and uniformity, with temperature controlled by a Watlow F4T digital controller, featuring a touch screen, PID control, and Ethernet communication.

The oven also includes a process timer with an audible alarm, ensuring consistent curing and part quality.

Read further here.

Ipsen announces launch of field service engineer academy


Source: ASM International

Ipsen announces launch of field service engineer academy

Ipsen, Cherry Valley, IL, has announced the launch of its Field Service Engineer (FSE) Academy, a 20-week training program aimed at strengthening the Ipsen Customer Service (ICS) Team. The program includes both classroom instruction at the company’s TDC facility in Cherry Valley, Illinois, and hands-on field training with veteran technicians. While primarily designed for new hires, experienced engineers can also participate, with regional service managers directing them to specific modules based on their skill level assessments.

The academy will focus on the fundamentals of vacuum furnace repair, giving technicians a comprehensive understanding of Ipsen’s equipment and customer applications. Technical Training Lead Cavan Cardenas noted, “From day one, we want our technicians to grasp how our products work and their purpose in the field.”

In addition to technical training, the program will develop soft skills and address the demands of a service-driven role, preparing recruits for a dynamic, on-the-road service environment.

Read further here.

One Minute Mentor: Distortion in Tool Steels

July 28, 2024
Source: ASM International

One Minute Mentor: Distortion in Tool Steels

Some of the main interactions  that occur during the heat treatment of steel alloys including temperature, microstructure, and stress/strain. Especially for tool steels these interactions are mainly influenced by the carbon content in the steel matrix, the types and relative amounts of the alloying elements, and the carbide formation/transformation/precipitation characteristics of the alloy system.

Heat treatment involves changes of temperature with time, which determine changes in microstructure. The rate of temperature change results in a change of microstructure which is described by phase transformation kinetics, as in e.g. TTT (time-temperature-transformation) diagrams; every phase transformation releases/absorbs latent heat, which influences the temperature field. An inhomogeneous temperature distribution, i.e. temperature gradients, within the tool during heat treatment can generate thermal stresses that lead to plastic deformation, if the yield strength of the material at that temperature is exceeded. Every mechanical deformation generates heat which, in turn, influences the temperature field. Furthermore, there is an interaction between the stress state and the microstructure. Phase transformations can result in micro-plastic deformation, which can be globally described using transformation plasticity models.

For more information, click on the link below (subscription required). Then scroll to Figure 2. R Schneider; R. Mesquita; W Schützenhöfer, Distortion in Tool Steels, ASM International, 2014  https://doi.org/10.31399/asm.hb.v04d.a0005980

 

Harper International Receives Order for Scientific Line for Pitch Carbon Fiber


Source: ASM International

Harper International Receives Order for Scientific Line for Pitch Carbon Fiber

Harper International, Buffalo, NY, announces that it has been awarded a contract to engineer and manufacture a Scientific Line for the production of Bitumen Pitch Carbon, which will be installed at Alberta Innovates, located in Edmonton, Alberta, Canada. The facility will be operated by InnoTech Alberta, a wholly-owned subsidiary of Alberta Innovates. The equipment delivery and start-up services are scheduled for 2025.

This pilot-scale equipment will be used by researchers as part of the Carbon Fibre Grand Challenge launched by Alberta Innovates. The challenge aims to accelerate the development of large-scale production pathways for short and continuous carbon fiber from bitumen-derived feedstocks. Phase III of the competition will allow projects to demonstrate, in a repeatable manner, the ability to manufacture carbon fiber, incorporate it into prototypes, and understand the techno-economics associated with the designed process.

“Harper is pleased to support Alberta Innovates Carbon Fibre Grand Challenge to successfully create an alternative carbon fiber precursor with our customized Scientific Line. Carbon fiber from bitumen-derived precursor will significantly lower the price and have a smaller environmental impact,” says Briana Tom, Harper Sales Engineer.

Harper International is a world leader in thermal processing solutions for advanced materials. This latest contract highlights their commitment to innovation and supporting sustainable advancements in material science.

Read further here.

Steel Dynamics announces leadership appointments

June 11, 2024
Source: ASM International

Steel Dynamics announces leadership appointments

Steel Dynamics Inc., Fort Wayne, Ind., announced leadership appointments for James Anderson and Chad Bickford. Mark D. Millett, Chairman and CEO, expressed his excitement, praising their leadership qualities and positive influence within the company. Millett highlighted their commitment to the company’s core values of safety, performance, and innovation, and their focus on prioritizing personnel.

James Anderson has been named Senior Vice President of the Long Products Steel Group, effective May 1, 2024. Anderson, who will report to Barry Schneider, President and COO, brings a wealth of experience from his previous roles, including leading the Steel Fabrication business and serving as COO of New Millennium Building Systems. His new role will see him overseeing operations that include four EAF long product steel mills and various smaller facilities, together capable of shipping nearly five million tons of steel annually.

Chad Bickford will take over Anderson’s former position as Vice President of the Steel Fabrication Group, New Millennium Building Systems. Bickford, who also reports to Schneider, transitions from his recent role managing the Butler Flat Roll Steel Division. His extensive background in steel fabrication operations and leadership, including a stint as General Manager at the Virginia steel fabrication facility, prepares him well for his new responsibilities overseeing seven manufacturing facilities across the U.S. and Mexico.

Read further here.